Modesto Dark Web Fentanyl Dealer Sentenced to 10 Years in Prison

SACRAMENTO, Calif. - Devlin Hosner, 37, of Modesto, was sentenced today by Senior U.S. District Judge John A. Mendez to 10 years in prison for a conspiracy to distribute fentanyl and methamphetamine, U.S. Attorney Eric Grant announced.

According to court documents, Hosner and co-defendant Holly Adams, 36, made hundreds of thousands of dollars selling fentanyl-laced counterfeit oxycodone pills and methamphetamine on the dark web, and laundered the proceeds through cryptocurrency mixers, wallets, and other online tools. In September 2021, state law enforcement officers executed a search warrant at their residence. Hosner tried to block their entry while Adams destroyed pills by pouring them into a chemical solution. Both were arrested, released, and soon resumed selling fentanyl on the dark web while unknowingly under federal investigation.

In March 2022, federal law enforcement agents executed a search warrant at a hotel room in Riverside County where Hosner and Adams were staying and seized nearly a kilogram of fentanyl-pressed pills and 60 grams of methamphetamine.

On Dec. 9, 2026, Hosner pleaded guilty. Adams pleaded guilty on June 18, 2024, and was sentenced to 12 years in prison on June 3, 2025.

This case is the product of an investigation by the Northern California Illicit Digital Economy (NCIDE) Task Force, which includes agents from the IRS Criminal Investigation, Homeland Security Investigations, the Federal Bureau of Investigation, the U.S. Postal Inspection Service, the U.S. Postal Service Office of Inspector General, and the Drug Enforcement Administration. The NCIDE Task Force is a federal task force focused on targeting all forms of illicit dark web and cryptocurrency activity in the Eastern District of California and beyond. Assistant U.S. Attorney Sam Stefanki prosecuted the case.